Stock-Based Compensation Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense	$ 118,000	$ 111,000	$ 85,000
Recognized income tax benefits related to stock-based compensation	$ 24,000	$ 26,000	$ 16,000
Shares under equity incentive compensation plan for future grant	4,218,093	1,650,696
Stock Options Outstanding, Granted	179,551	138,825	178,441
Weighted average grant date fair value of options granted	$ 9,000	$ 6,000	$ 5,000
Directors’ Stock Compensation Programs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable under deferred compensation plans	1,979	2,306
Shares issued in connection with deferred compensation plans	27,027	22,068
Deferred Bonus Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable under deferred compensation plans	10,238	11,725
Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares under equity incentive compensation plan for future grant	1,972,627
Shares issued	90,575	75,232	95,147
Cash received from exercise of stock options	$ 13,000	$ 11,000	$ 11,000
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years	3 years	3 years
Shares issued	0	0	0
Unrecognized compensation cost expected to be recognized over a weighted-average period (in years)	1 year
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued	752,534	548,926	636,956
Weighted-average grant date fair value	$ 116,000	$ 93,000	$ 84,000
Unrecognized compensation cost related to non-vested awards	$ 42,000
Stock Option Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Stock options exercisable period, maximum	10 years
Cash realized from exercise of stock options	$ 32,000	$ 37,000	$ 305

Employee service share based compensation cash received from employee stock ownership plan.

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